Of course a private business is not a state actor. I feel we're speaking different languages. It's illegal for a business to discriminate against people for their political views, unless those views are making direct physical threats of harm to others. When a social media platform starts to discriminate against users who they disagree with, that is illegal. They have a right to prevent ALL political content on their site, but have no right to offer service to some, while discriminating against others based on race, religion, political view, gender, sexual preference, etc.